One thing is that the copyright restrictions stated pretty much make
it illegal to download the file:

All rights reserved. No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in any form or by any
means, electronic, mechanical, photocopying, recording or otherwise,
without the prior written permission of the publisher or Unicode, Inc.
The book files may not be mirrored on any internal or external web
site. Users are prohibited from making local copies of any of the book
files.

In other words, it's illegal to download or even to look at the file,
since that would entail (a) transmitting, (b) making a local copy
of the file, and (c) electronically reproducing it (on your screen or
printer.)